CN102061152A - High-strength controllable gel breaking chemical temporary plugging liquid rubber plug - Google Patents
High-strength controllable gel breaking chemical temporary plugging liquid rubber plug Download PDFInfo
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- CN102061152A CN102061152A CN2009102378146A CN200910237814A CN102061152A CN 102061152 A CN102061152 A CN 102061152A CN 2009102378146 A CN2009102378146 A CN 2009102378146A CN 200910237814 A CN200910237814 A CN 200910237814A CN 102061152 A CN102061152 A CN 102061152A
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- water
- liquid gum
- gum plug
- broken gel
- high controlled
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- 239000007788 liquid Substances 0.000 title claims abstract description 34
- 239000000126 substance Substances 0.000 title abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003999 initiator Substances 0.000 claims abstract description 12
- 239000000178 monomer Substances 0.000 claims abstract description 10
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 9
- 125000000129 anionic group Chemical group 0.000 claims abstract description 5
- 125000002091 cationic group Chemical group 0.000 claims abstract description 5
- 238000004132 cross linking Methods 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 229940123973 Oxygen scavenger Drugs 0.000 claims description 8
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 7
- IUPDXIXTYXNMFR-UHFFFAOYSA-N azane N,N-dimethylmethanamine hydrochloride Chemical compound [Cl-].[NH4+].CN(C)C IUPDXIXTYXNMFR-UHFFFAOYSA-N 0.000 claims description 7
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 7
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 7
- PQUXFUBNSYCQAL-UHFFFAOYSA-N 1-(2,3-difluorophenyl)ethanone Chemical compound CC(=O)C1=CC=CC(F)=C1F PQUXFUBNSYCQAL-UHFFFAOYSA-N 0.000 claims description 5
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 5
- 229940047670 sodium acrylate Drugs 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical compound OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- XHZPRMZZQOIPDS-UHFFFAOYSA-N 2-Methyl-2-[(1-oxo-2-propenyl)amino]-1-propanesulfonic acid Chemical compound OS(=O)(=O)CC(C)(C)NC(=O)C=C XHZPRMZZQOIPDS-UHFFFAOYSA-N 0.000 claims description 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004159 Potassium persulphate Substances 0.000 claims description 3
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 claims description 3
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- PYGSKMBEVAICCR-UHFFFAOYSA-N hexa-1,5-diene Chemical group C=CCCC=C PYGSKMBEVAICCR-UHFFFAOYSA-N 0.000 claims description 3
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 3
- 235000019394 potassium persulphate Nutrition 0.000 claims description 3
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 claims description 3
- NLHHRLWOUZZQLW-UHFFFAOYSA-N Acrylonitrile Chemical compound C=CC#N NLHHRLWOUZZQLW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004160 Ammonium persulphate Substances 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 2
- 150000001450 anions Chemical class 0.000 claims description 2
- 150000001768 cations Chemical class 0.000 claims description 2
- ICCVPGYRPHQUAW-UHFFFAOYSA-N dimethyl(1-prop-2-enoyloxypropyl)azanium chloride Chemical compound [Cl-].CCC([NH+](C)C)OC(=O)C=C ICCVPGYRPHQUAW-UHFFFAOYSA-N 0.000 claims description 2
- FGRVOLIFQGXPCT-UHFFFAOYSA-L dipotassium;dioxido-oxo-sulfanylidene-$l^{6}-sulfane Chemical compound [K+].[K+].[O-]S([O-])(=O)=S FGRVOLIFQGXPCT-UHFFFAOYSA-L 0.000 claims description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 claims description 2
- 235000019252 potassium sulphite Nutrition 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- PODWXQQNRWNDGD-UHFFFAOYSA-L sodium thiosulfate pentahydrate Chemical compound O.O.O.O.O.[Na+].[Na+].[O-]S([S-])(=O)=O PODWXQQNRWNDGD-UHFFFAOYSA-L 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 11
- 238000006116 polymerization reaction Methods 0.000 abstract description 3
- 239000003431 cross linking reagent Substances 0.000 abstract 2
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 19
- 238000002360 preparation method Methods 0.000 description 15
- 239000012530 fluid Substances 0.000 description 12
- 239000003292 glue Substances 0.000 description 11
- 239000000499 gel Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 239000000084 colloidal system Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 244000241257 Cucumis melo Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 244000275012 Sesbania cannabina Species 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006471 dimerization reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention relates to a high-strength controllable gel breaking chemical temporary plugging liquid rubber plug, which is characterized in that: the cross-linking agent is prepared by solution cross-linking polymerization of amphoteric polyacrylamide, cationic monomer, anionic monomer, cross-linking agent and initiator in water according to the weight ratio of 0.3-1: 6-12: 1-5: 0.02-0.06: 81.9-93 to water; the liquid rubber plug can resist 60 ℃ and the gelling time can be adjusted within 2-50min, can bear the fracturing construction pressure difference of more than 15MPa, can replace a mechanical packer to effectively plug a target layer and then carry out conventional fracturing construction, and can control the gel breaking hydration within the required time.
Description
Technical field
What the present invention relates to is a kind of in the horizontal well in segments frac job, can replace mechanical packer to play the temporarily stifled liquid gum plug of the high controlled broken gel of intensity of bridge plugging effect.
Background technology
In the staged fracturing of horizontal well, some well can't use mechanical packer to carry out packing because perforated interval is oversize or produce oil gas-bearing formation spacing is too little, also have the special construction of well section, mechanical packer can not be carried out the packing effect at zone of interest, and these wells can't be finished the staged fracturing transformation.A kind of temporarily stifled liquid gum plug of the controlled broken gel of high strength that is used for the horizontal well in segments pressure break can replace the accurate shutoff zone of interest of mechanical packer, has good ultimate compression strength, after finishing, pressing crack construction can break glue automatically, for the horizontal well transformation provides a kind of new chemical temporary blocking method.
In technology in the past, " liquid gum plug packing agent " (CN1182112A), " agent of high temperature resistance completion temporary blocking " (CN1047686A) is to use sesbania gum and melon glue powder in the vegetable jelly is raw material, adopting titanium tetrachloride and potassium bichromate is linking agent, gain in strength by back-up sand in the construction, and the temporary plugging agent that can only in straight well, use.
Summary of the invention
The purpose of this invention is to provide a kind of broken glue may command of glue that becomes in 60 degree, heat resistance is good, the energy bearing certain pressure, little to reservoir damage, without back-up sand, can replace mechanical packer packing reservoir, after carrying out pressing crack construction, horizontal well target well section can break the chemical plugging agent of glue automatically.
The temporarily stifled liquid gum plug of the controlled broken gel of high strength that is used for the horizontal well in segments pressure break of the present invention is to be mixed with supporting gel breaker by high molecular polymer, under linking agent and initiator effect, and the polymerization synthetic.
The present invention mentions pass through crosslinking polymerization form high molecular polymer be by amphiprotic polyacrylamide, cationic monomer, anionic monomer, linking agent, initiator according to the weight ratio 0.3-1 of water: the ratio of 6-12: 1-5: 0.02-0.06: 0.02-0.06: 81.9-93 is carried out solution crosslinking and is polymerized in water.
The molecular weight of amphiprotic polyacrylamide is 500-1400 ten thousand, and wherein: cation concn accounts for the 5-10% of amphiprotic polyacrylamide total mass, and anion concentration accounts for the 10-20% of amphiprotic polyacrylamide total mass.Example has: a kind of in the great waves technology development co. patent CN1995270A product wishes in STP-2, HENGFLOC 50809, HENGFLOC 50812, Beijing of the permanent dimerization in Beijing company.
Cationic monomer has: one or more in dimethyl diallyl ammonia chloride, acrylyl oxy-ethyl-trimethyl ammonia chloride (DAC), the methylacryoyloxyethyl trimethylammonium ammonia chloride (DMC) etc.
The example of anionic monomer has: one or more in acrylamide, Methacrylamide, vinyl cyanide, sodium acrylate, vinylformic acid, methacrylic acid, the acrylamido methyl propane sulfonic acid (AMPS) etc.
Linking agent has: PEI resin, C10-30 alkyl acrylic fat, one or more in the NN-methylene-bisacrylamide.
Initiator has: Sulfothiorine, Potassium Thiosulphate, ammonium persulphate, Sodium Persulfate, Potassium Persulphate, one or more in the hydrogen peroxide.
Oxygen scavenger has: S-WAT, and potassium sulfite, one or more in the sodium bisulfite are adjusted consumption according to the weight ratio of water quality situation and water in 0.02-0.08%.
The temporarily stifled liquid gum plug of the controlled broken gel of high strength formed according to the present invention, gelation time can be controlled in the 2-50min, plug can be by the broken automatically glue of gel breaker effect in 4-72h, breaking glue solution viscosity is less than 5mpa.s, to reservoir damage less than 15%, ultimate compression strength is greater than 15MPa, and use temperature is 20-70 ℃.Finished three sections of shutoff at the scene, oil field, the liquid gum plug shutoff pressing crack construction that pressure break is four sections, pressure is 23-38MPa during construction, played oil pipe in 48 hours after construction is finished and begin normal pressing crack construction operation, increase additional pulling force, return discharge opeing viscosity less than 5mpa, s presses back output by 1m
3Be increased to 18m
3
The present invention constructs by lab and field, prove that preparation is convenient, control easily, strong, the broken glue of anti-pressure ability fast, characteristics such as construction is simple.
Embodiment
Embodiment 1
In the time of 30 ℃, the weight ratio of each component and water: STP-2:: acrylamide: methylacryoyloxyethyl trimethylammonium ammonia chloride (DMC): NN-methylene-bisacrylamide: Potassium Persulphate: S-WAT: water=0.6: 10: 1: 0.05: 0.05: 0.05: 89.
Base fluid preparation: add 0.6%STP-2 at the water that stirs, add 10% acrylamide, 0.1% methylacryoyloxyethyl trimethylammonium ammonia chloride again behind the stirring 15min, left standstill swelling after stirring 4 hours, liquid viscosity 15mpa.s.
Crosslinked fluid preparation: in water, add the 1%NN-DMAA, stir and place dissolving.
Initiator liquid preparation: in water, add 10% Sodium Persulfate, stir and place dissolving.
Oxygen scavenger liquid preparation: in water, add 1% S-WAT, stir and place dissolving.
The liquid gum plug preparation: add crosslinked fluid 5ml respectively in the 1000ml base fluid, add initiator liquid 5ml, add oxygen scavenger liquid 5ml, place the back that stirs fast, and liquid begins tackify when 12min, and 20min becomes the glue deformable, and the 50min colloid is non-deformable.
Embodiment 2
In the time of 30 ℃, the weight ratio of each component and water: STP-2:: sodium acrylate: dimethyl diallyl ammonia chloride: NN-DMAA: Sodium Persulfate: S-WAT: water=0.8: 10: 1: 0.03: 0.05: 0.05: 89.
Base fluid preparation: mix in the accent device cup at 1500ml, add cleaning water 882g, under the rotating speed of 100 commentaries on classics/min, add 8g STP-2, add the 100g sodium acrylate again after stirring 15min, add 10g methylacryoyloxyethyl trimethylammonium ammonia chloride again, pour into after stirring and left standstill swelling in the 1000ml beaker 4 hours, liquid viscosity 36mpa.s.
Crosslinked fluid preparation: in the 100ml beaker, add NN-DMAA 1g, stir and place dissolving.
Initiator preparation: in the 50ml beaker, add Sodium Persulfate 5g, stir and place dissolving.
Oxygen scavenger preparation: in the 100ml beaker, add S-WAT 1g, stir and place dissolving.
The liquid gum plug preparation: add crosslinked fluid 3ml respectively in the 1000ml base fluid, add initiator 5ml, add oxygen scavenger 5ml, place the back that stirs fast, and liquid begins tackify when 17min, and 30min becomes the glue deformable, and the 50min colloid is non-deformable.
Embodiment 3
In the time of 30 ℃, the weight ratio of each component and water: STP-2:: acrylamide: vinylformic acid: NN-methylene-bisacrylamide: Sodium Persulfate: sodium bisulfite: water=0.8: 8: 1: 0.03: 0.03: 0.05: 90.Liquid viscosity 36mpa.s.
Base fluid is prepared: mix at 1500ml and transfer in the device cup, add cleaning water 892g, under the rotating speed of 100 commentaries on classics/min, add 8g STP-2, add 80g sodium acrylate and 10g vinylformic acid again behind the stirring 15min, pour into after stirring and left standstill swelling in the 1000ml beaker 4 hours.
Crosslinked fluid preparation: in the 100ml beaker, add NN-DMAA 1g, stir and place dissolving.
Initiator liquid preparation: in the 50ml beaker, add Sodium Persulfate 5g, stir and place dissolving..
Oxygen scavenger liquid preparation: in the 100ml beaker, add S-WAT 1g, stir and place dissolving.
The liquid gum plug preparation: add crosslinked fluid 3ml respectively in the 1000ml base fluid, add initiator liquid 3ml, add oxygen scavenger liquid 5ml, place the back that stirs fast, and liquid begins tackify when 20min, and 40min becomes the glue deformable, and the 50min colloid is non-deformable.
Claims (7)
1. the high controlled broken gel of an intensity is blocked up liquid gum plug temporarily, it is characterized in that: by amphiprotic polyacrylamide, cationic monomer, anionic monomer, linking agent, initiator according to the weight ratio 0.3-1 of water: the ratio of 6-12: 1-5: 0.02-0.06: 0.02-0.06: 81.9-93 is carried out solution crosslinking and is polymerized in water.
2. the temporarily stifled liquid gum plug of the high controlled broken gel of intensity according to claim 1, it is characterized in that: the amphiprotic polyacrylamide molecular weight is at 500-1400 ten thousand, wherein: cation concn accounts for the 5-10% of amphiprotic polyacrylamide total mass, and anion concentration accounts for the 10-20% of amphiprotic polyacrylamide total mass.
3. the temporarily stifled liquid gum plug of the high controlled broken gel of intensity according to claim 1, it is characterized in that: cationic monomer is: one or more in dimethyl diallyl ammonia chloride, acrylyl oxy-ethyl-trimethyl ammonia chloride, the methylacryoyloxyethyl trimethylammonium ammonia chloride.
4. the temporarily stifled liquid gum plug of the high controlled broken gel of intensity according to claim 1, it is characterized in that: anionic monomer is: one or more in acrylamide, Methacrylamide, vinyl cyanide, sodium acrylate, vinylformic acid, methacrylic acid, the acrylamido methyl propane sulfonic acid.
5. the temporarily stifled liquid gum plug of the high controlled broken gel of intensity according to claim 1, it is characterized in that: linking agent is the PEI resin, C10-30 alkyl acrylic fat, one or more in the NN-methylene-bisacrylamide.
6. the temporarily stifled liquid gum plug of the high controlled broken gel of intensity according to claim 1, it is characterized in that: initiator is: Sulfothiorine, Potassium Thiosulphate, ammonium persulphate, Sodium Persulfate, Potassium Persulphate, one or more in the hydrogen peroxide.
7. the temporarily stifled liquid gum plug of the high controlled broken gel of intensity according to claim 1, it is characterized in that: oxygen scavenger is: S-WAT, potassium sulfite, one or more in the sodium bisulfite are adjusted consumption according to the weight ratio of water quality situation and water in 0.02-0.08%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910237814.6A CN102061152B (en) | 2009-11-11 | 2009-11-11 | High-strength controllable gel breaking chemical temporary plugging liquid rubber plug |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910237814.6A CN102061152B (en) | 2009-11-11 | 2009-11-11 | High-strength controllable gel breaking chemical temporary plugging liquid rubber plug |
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| Publication Number | Publication Date |
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| CN102061152A true CN102061152A (en) | 2011-05-18 |
| CN102061152B CN102061152B (en) | 2014-01-15 |
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Cited By (21)
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| CN103547766A (en) * | 2011-05-19 | 2014-01-29 | 贝克休斯公司 | Easy drill slip with degradable materials |
| CN104178102A (en) * | 2014-05-16 | 2014-12-03 | 成都佰椿石油科技有限公司 | Cross-linkable high-temperature-resistant residue-free polybasic copolymerizable fracturing fluid and preparation method thereof |
| CN104327814A (en) * | 2014-09-19 | 2015-02-04 | 山东瑞特精细化工有限公司 | Polyacrylamide plugging agent and preparation method thereof |
| CN104403658A (en) * | 2014-12-08 | 2015-03-11 | 中国石油大学(华东) | High-temperature-resistant crosslinking acid liquor system as well as preparation method thereof |
| CN105089599A (en) * | 2014-05-08 | 2015-11-25 | 中国石油化工股份有限公司 | Device and method for immovable string hydraulic sand blasting and fracturing |
| CN106321050A (en) * | 2015-06-30 | 2017-01-11 | 中国石油化工股份有限公司 | High efficiency fracturing method using coiled tubing water-jet and soluble rubber plugs |
| CN108505982A (en) * | 2018-02-27 | 2018-09-07 | 中国石油天然气股份有限公司 | Old well repeated fracturing production increase method for realizing temporary plugging steering by adopting liquid rubber plug |
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| CN1172890A (en) * | 1997-08-27 | 1998-02-11 | 辽河石油勘探局钻采工艺研究院 | Preparing and use of liquid bridging plug |
| CN101089116A (en) * | 2007-07-11 | 2007-12-19 | 中国石油大学(华东) | Adaptive leak preventing and stopping agent for drilling fluid |
| CN101235283A (en) * | 2008-03-04 | 2008-08-06 | 湖北大学 | Method for preparing amphiprotic polyacrylamide oil field compression fracture thickening agent |
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2009
- 2009-11-11 CN CN200910237814.6A patent/CN102061152B/en active Active
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| CN103547766A (en) * | 2011-05-19 | 2014-01-29 | 贝克休斯公司 | Easy drill slip with degradable materials |
| CN103547766B (en) * | 2011-05-19 | 2016-08-17 | 贝克休斯公司 | There is bridging plug and the minimizing technology thereof easily boring slip element |
| CN105089599A (en) * | 2014-05-08 | 2015-11-25 | 中国石油化工股份有限公司 | Device and method for immovable string hydraulic sand blasting and fracturing |
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